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1628 Uppsatser om Usability evaluation - Sida 42 av 109

Säkerhetsbrytare för Gräsklippare

This thesis describes teh solution of two problems regarding safety on powered lawnmowers; protectning the users from injury when using the lawnmower in slopes, and when cleaning the cutting blade.The task was carried out through initial studies on a representative lawnmower. A generation of ideas followed with an evaluation to select the best solution. The winning concept was further developed to reach acceptable performance. The word resulted in a functioning prototype utilising an original way of detecting inclinations without incorrect signals. It c an serve as a platform for further development into a product.The work gives insightful experience of solving real-world problems, and especially to deal with situations where several variables and their effects are unknownPlease note that several parts of the work are confidential, and have therefore been removed from the thesis..

Införande av IT-system i slutenvården : En studie vid Lasarettet i Enköping

As the ability to computerize processes and tasks increase, the proliferation of complex systems in our society continues. How these systems are deployed in the organizations where they are meant to be utilized has been shown to have a large impact on how well they function.In January of 2011 the Enköping hospital initiated the deployment of an IT-support for drug management, a module in the general health care system Cambio COSMIC. Other health care providers in the county, and in the rest of Sweden, have had mixed feelings toward the module. Some have outright refused the module, claiming that it is detrimental to patient safety. One of the arguments for deploying the module in Enköping, however, was that it was needed to improve patient safety.The Enköping hospital is considered to be a well organized institution with good leadership and earlier good experiences regarding IT-systems.

En utvärdering av Audiolet för portandet avett röst-drivet program till webben

We where asked to write a webapplication, with similar functionalityas an existing desktop application. The application can todayrecord sounds from a person, mix it together at the optimal place withanother, similar sound and play back the result.The application used mathematical calculation that the developerswhere not familiar with, therefore it was decided to focus on the partsthat involved recording and playing sound, to pave the way for anyfuture implementation.The follwing prototypes where implemneted:1. Read a sound clip from a file.2. Splicing of two sound clips at different points in the clips.3. Generate the sound of a guitar.The result of this evaluation is that web browsers today are notready for this type of application, but that there is potetial as soonas W3C have standardised the use of a microphone as a source to theexisting DSP functions..

Hur utvärderas e-learning?

Allt större och större andel företag väljer att presentera och förmedla varor och tjänster via e-handel. En viktig aspekt vid e-handel är att kunden känner förtroende för e-handelsapplikationen och företaget. Denna rapport redogör för vilken inverkan multimediala inslag har för förtroendet av en e-handelsapplikation, vid initialt användande. En undersökning har genomförts med hjälp av en kooperativ utvärdering av fyra e-handelsapplikationer vilka innehåller olika typer av multimediala inslag har.Resultatet av undersökningen visar att multimediala inslag inverkar positivt på förtroendet för e-handelsapplikationer. Däremot finns indikationer på att för hög grad av multimedialt inslag inverkar negativt på förtroendet för e-handelsapplikationer..

Verifiering av Kedertakstolen

The Kedertruss is the loadbearing part in the Keder weatherprotectionsystem and it has been analyzed concerning its loadbearing capacity. The Kedertruss is produced and manufactured by Wilhelm Layher GmbH & Co. KG and this report has been made for their Swedish division Layher AB.  The Kedertruss, designed in Germany according to German designcode, has been recalculated concerning Swedish conditions according to Eurocodes and a ongoing European standardization project. The two-dimensional program Winstatik Frame Analysis has been used for evaluation of load effects. Capacity has been calculated by hand-calculations and it has been verified that the Kedertruss in its larger spans isn?t able to withstand the loads.

Funktioner inom Video on Demand-tjänster : En användarstudie inom online streaming

Sedan 2013 har allt fler börjat använda sig av streamingtjänster för film och TV på internet (Findahl,2014). I takt med att användningen ökar är det viktigt att tjänsterna är välutvecklade och lättillgängliga för användaren. I denna uppsats undersöker vi funktioner på de tre största Video on Demand-tjänsterna (VoD) i Sverige ur ett användarperspektiv. Med hjälp av befintliga teorier och litteratur diskuterar vi användarbarhet och genomför en områdesanalys av de utvalda VoD-tjänsterna. Utifrån analysen har vi gått vidare med tio funktioner för att avgränsa studien.

Trovärdighet på onlinebutiker inom mode : En kvalitativ studie av den estetiska utformningens påverkan på trovärdigheten vid ett första intryck

E-commerce is becoming more common in Sweden and many Swedes buy clothing and sporting goods online. Online fashion retailers offer a visually pleasing range of products, which places greater emphasis on the aesthetic design of the online retailer. This paper examines how the perceived credibility of an online fashion retailer is influenced by the aesthetic design through a first impression. This study was conducted through ten interviews where the informants observed, assessed, and then discussed the online fashion retailers that were used in this study. Results show that recognition of an aesthetic design and a perception of usability and professionalism affects the perceived credibility in a positive way.

Trender i ämnesval hos magisteruppsatser inom kunskapsorganisation 1995-2005 : en innehållsanalys

The aim of this study is to establish whether there are any specific trends in master theses concerning knowledge organization. To identify the past and current trends a method of content analysis has been applied to 110 theses over a time period of ten years. The results of this study show that there is an increasing interest in subjects concerning for example the evaluation of retrieval effectiveness in search engines on the Internet. A subject which was popular in the late 1990:s was information technology and its different applications. This subject has since that time decreased in popularity.

Utveckling av ögonstyrt kommunikationshjälpmedel för intensivvårdspatienter

Thousands of people all over the world suffer from injuries that temporary affects their ability to speak or inother ways communicate. A very common procedure for persons that suffer from some kind of breathingproblem in the higher parts of the neck is called tracheotomy. This prevents the patient from speaking whenno air passes the vocal cords. There have been many studies done to understand how these patientsexperience this period. The results are consistent, the patients often feel fear, frustration and worries aboutthe future.Tobii Technology develops a technique called eyetracking wich enables persons to control a computer with theeyes.

Portning av applikationen Vasasvahn

In today's society it is important to easily and smoothly get accurate information. Withthe help of the application VasaSvahn it is possible to get expert help for Crosscountry ski waxing. The application VasaSvahn has been ported from an existingversion for iOS to a new version for Android. The application uses a third-party Webservices to obtain necessary information and support distribution of information. Theapplication is also connected to a database.

En kognitiv semantisk analys av partikelverbet gå upp: : Conceptual Metaphor Theory (CMT) kontra Principled Polysemy Approach to Meaning Analysis (PPAMA)

This essay examines the differences and similarities, weaknesses and strengths of the two Cognitive Semantic theories Conceptual Metaphor Theory and Principled Polysemy Approach to Meaning Analysis. To illustrate the two theories, the Swedish verb-particle construction "gå upp" is examined and analyzed accordingly. The results showed differences in the number of polysemous meaning found. The methodological evaluation showed that the differences in the underlying ideas concerning meaning-construction behind these two theories make them incompatible..

Videoproduktion och distribution av gudstjänster

Sammanfattning: Det är minst lika många människor som besöker arrangemang och gudstjänster i kyrkor som besöker idrottsevenemang. Det behövs studiogudstjänster dock sänds det allt färre Tv-gudstjänster direkt från kyrkor och medlen för att göra detta är också på väg att minskas. Många som ser dessa gudstjänster har av olika orsaker inte möjlighet att besöka en kyrka. Detta kan t ex bero på funktionshinder och sjukdom men också att många äldre har svårt att förflytta sig och se gudstjänster live. Ett sätt för kyrkorna att nå ut på bredare front skulle kunna vara att använda sig av Internet som media.Syftet med uppsatsen är att genom intervjuer, användningstestning och slutligen prototyptestning, ta fram en lösning för digital överföring av ljud och bild från ett ställe till ett annat via ett IP-nätverk och finna en avvägning mellan det tekniska och användbarheten då användaren har begränsad teknisk kunskap.Vid datainsamlingen användes en kvalitativ forskningsprocess med intervjuer och observation som insamlingstekniker.

Ett socialt nätverk anpassat för äldre : En studie av det sociala nätverket Modernfamilies

In this paper we analyze a social network specifically designed for the elderly, people with Dementia and people with generally low computer experience. This is a relatively unexplored use for such software, and our goal is to find out whether the technique to be used is simple enough to use for the intended user group, and generally how the whole situation is experienced by the users. To achieve this we conducted an expert evaluation and interviewed a number of users at two separate occasions during their first weeks with Modernfamilies. We came to the conclusion that this software generally is simple enough to use for the intended target group. Some of the users we came in contact with experienced the software as a positive addition to their daily lives, while some could not see any reason for a further use.

Täckning av ett informationsbehov via Wold Wide Webb - Hur man undersöker ett informationsbehov, söker efter information på WWW samt utvärderar sökmaskiner.

This thesis was built on a practical work for LM Ericsson Data AB and deals with how toexamine an information need for a limited department within the corporation using aqualitative interview method.The thesis deals with how to search for requested information on the Internet and the WorldWide Web (WWW). It contains a model and a method for evaluation of search engines onthe World Wide Web, and 16 search engines which primarily indexes the World Wide Webare being evaluated..

En optimierande kompilator för SMV till CLP(B)

This thesis describes an optimising compiler for translating from SMV to CLP(B). The optimisation is aimed at reducing the number of required variables in order to decrease the size of the resulting BDDs. Also a partitioning of the transition relation is performed. The compiler uses an internal representation of a FSM that is built up from the SMV description. A number of rewrite steps are performed on the problem description such as encoding to a Boolean domain and performing the optimisations.

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